Search a number
-
+
20123131012410 = 2352329163957989
BaseRepresentation
bin1001001001101010010000…
…00100110110010100111010
32122020202022121012000201210
410210311020010312110322
510114144133014344120
6110444234435023550
74144563642245226
oct444651004662472
978222277160653
1020123131012410
116459198936118
12230bbb7a3abb6
13b2c7ac063b6a
144d7d71351786
1524d6aeb5dce0
hex124d4813653a

20123131012410 has 32 divisors (see below), whose sum is σ = 50395319406720. Its totient is φ = 5132856605888.

The previous prime is 20123131012409. The next prime is 20123131012463. The reversal of 20123131012410 is 1421013132102.

It is a super-2 number, since 2×201231310124102 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14581978305 + ... + 14581979684.

It is an arithmetic number, because the mean of its divisors is an integer number (1574853731460).

Almost surely, 220123131012410 is an apocalyptic number.

20123131012410 is an abundant number, since it is smaller than the sum of its proper divisors (30272188394310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123131012410 is a wasteful number, since it uses less digits than its factorization.

20123131012410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29163958022.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20123131012410 its reverse (1421013132102), we get a palindrome (21544144144512).

The spelling of 20123131012410 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty-one million, twelve thousand, four hundred ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 29163957989 58327915978 87491873967 145819789945 174983747934 291639579890 437459369835 670771033747 874918739670 1341542067494 2012313101241 3353855168735 4024626202482 6707710337470 10061565506205 20123131012410